I'm a newbie and getting my coop set up. I have 2 silkies and 3 easter egger chicks about a week old. I haven't seen it mentioned anywhere about heaters in coops. My coop is completely enclosed, with their entry door, no insulation. It snows a couple times in the winter, and remains under 40 degrees for about a month out of the year. How hardy are these chickens? Also, do I need a light in the coop? Besides this, I have found all other answers to my questions only from this site! This is the best source of information, and I love hearing about everyone's little bow peeps! Also... how do I add pictures to posts? Thank you!!